Support for adding annotations to deployment spec to Package Manager

Description

Users would like the ability to add annotations to the deployment spec. Right now it's possible to add annotations to the pod spec and to the service spec, but not the deployment spec.

apiVersion: apps/v1
kind: Deployment
metadata:
  annotations:
    reloader.stakater.com/auto: "true"

This request arose because I was talking to a user who is using a tool (https://github.com/stakater/Reloader) to automate redeployments when a secret changes. But that tool depends on an annotation being set on a deployment.

Approach

• Add new top level item to values.yaml:

deployment:
    annotations: {}

• Update the deployment template (https://github.com/rstudio/helm/blob/main/charts/rstudio-pm/templates/deployment.yaml) to add annotations set in values.yaml.

Related

I already completed this work for Connect. See, this pull request: https://github.com/rstudio/helm/pull/794

Start with charts/rstudio-pm/values.yaml and charts/rstudio-pm/templates/deployment.yaml, and compare the related Connect change in pull request #794. Done means users can configure deployment annotations through values.yaml and the deployment spec receives them.